Ah, you meant the frame rate, well, that is easy to fix, try each setting, they will fix the frame rate issue. You need to figure out which one it is for you that drops it so much, my guess is the Shadows do:Options->Video->Advanced:

Ah, you meant the frame rate, well, that is easy to fix, try each setting, they will fix the frame rate issue. You need to figure out which one it is for you that drops it so much, my guess is the Shadows do:Options->Video->Advanced:

OpenGL Extensions: ENABLE

Shadows: Simple

Deform Geometry: DISABLE

Monitor Synchronisation: DISABLE

Thanks Chris. It helped a tad. Going to try each setting on an off separately and give it a try.

The only else reason what could cause this kind of issue I can think of would be if your cpu reduces the clock when it is used in a low amount. The CPU switching could also make troubles, if you have this kind of technology disable it to run the game.

I had this issue with my PC sometimes at some games, so I turned the feature off.

I don't think it is your gfx card, as they usually switch when a 3d application is loaded.

I'm having the same or at least very similar issue. In fact I tried the same level in the video and it plays exactly the same. I don't have any kind of CPU switching enabled, and nothing I can think of that's out of the ordinary. In fact I tried turning down all the video settings as low as possible and still can't get it work properly. I've tried several versions of new and old video drivers.

My system is a Core2 duo, 2.9ghz, 3gb ram. I have Radeon HD 4650 1gb video card on pci-e, as well as a dinosaur Geforce 2 MX 400 (32mb I think) in a PCI slot for a couple old games that don't cooperate with pci-e cards. I actually tried running the game on both and have the same problem.

Voyager Elite Force is even older, and it runs perfectly. Any other ideas what's up with EF2?

I can't think about anything else than the CPU technologies (Cool'n'Quiet, SpeedStep, PowerNow!), which are activated on default and need to be deactivated within the Bios settings, in the most cases.

That would explain why you can switch in a different GFX card and the issue is still there. When the game uses less cpu resources the cpu does switch, and reduce the clock and then the game needs more resources and the CPU switches back again.

If you could provide a video which shows multiple scenes where the game gets choppy, with the frame rate displaying that would help to do a diagnoses. The video should be much longer than the one we have already, which is showing just a few seconds.
To enable frames open up the console and type in fps 1, then hit enter, type in fps 0 to disable it again.

If that fails please try to enable console logging, open up the console and type in:
logfile 1
The log-file would be in your game directory:
ef2/base/<your-windows-username>_console.log

If that fails too, you would need to set the following start parameters, to the game so the game does log all the errors and warnings:
+developer 1 +cheats 1 +com_printwarnings 1 +logfile 1

Create a shortcut to the ef2.exe, edit it, click on the tab shortcut and add the parameters starting with + and separated with white-space.

Make also sure you have no Mods/Maps and other extras download and Installed for EF2, and that the official Patch 1.1 is applied.

I hope that helps you, if not please provide the contents of the log-file: